Early Races were being largely timed by stopwatches mounted to car dashboards, but because the complication was shrunk, they had been a lot more normally noticed on wrists, specifically in the F1 and endurance racing heyday among the ’50s and ’70s. Complication: Refers to any look at movement over and https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/